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11 sty 2024 · Pluto Atmosphere. Surface Pressure: ~13 microbar Surface temperature: 24 - 38 K (-247 - -233 C) Scale height: ~18 km lower atmosphere, ~50 km above 30 km Mean molecular weight: ~28 Atmospheric composition: 99% Nitrogen (N 2), 0.5% Methane (CH 4), 0.05% Carbon Monoxide (CO), trace HCN, C 2 H x hydrocarbons.
- Pluto
General Information. Pluto Fact Sheet; Reference Books on...
- Notes on the Factsheets
Most values listed in the factsheets are from the following...
- Planetary Fact Sheets
Author/Curator: Dr. David R. Williams,...
- Pluto
Pluto is about two-thirds the diameter of Earth's Moon and probably has a rocky core surrounded by a mantle of water ice. Interesting ices like methane and nitrogen frost coat the surface. Due to its lower density, Pluto's mass is about one-sixth that of Earth's Moon.
Average distance from Sun: 39.48 AU (5,906,376,200 km) Rotation period (length of day in Earth days): 6.39 (retrograde) Revolution period (length of year in Earth years): 247.92
18 mar 2016 · Pluto's small size and low mass mean that it has a density of 1.86 grams per cubic centimeter according to recent measurements by New Horizons, about 40 percent of Earth's density.
12 wrz 2024 · How big is Pluto compared to the Earth? Pluto is more than five times smaller than the Earth and almost 1.5 times smaller than our Moon. If you decided to take a car trip around Pluto’s equator, you might finish the journey in about five days!
15 paź 2024 · Pluto’s mean distance from the Sun, about 5.9 billion km (3.7 billion miles or 39.5 astronomical units), gives it an orbit larger than that of the outermost planet, Neptune. (One astronomical unit [AU] is the average distance from Earth to the Sun—about 150 million km [93 million miles].)
1 paź 2024 · The outer or uppermost part of a planet, moon, asteroid, comet or other body. The gravitational acceleration experienced at its surface at the equator. The speed needed for an object to break away from the gravitational pull of a planet or moon. The numbers displayed here are approximations.